On 15 Jan, 17:11, "Tom" wrote:
* All "burning" is oxidisation.
*Burn sulphur and you get sulphur dioxide (SO2), add to water and you get
sulphuric acid (H2SO4). This was still true 4000 years ago.

Ok, ok, you were there presumably, but a far cry from triphorine,
paraquat, resmesthrin, atrazine etc... and eventually glyphosate. I've
never been too fond of h2g2 gardens myself.